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Chapter 6 A&P test
| Question | Answer |
|---|---|
| Used to grin | Zygomaticus |
| Important muscle to a saxophone player | Buccinator |
| Used in blinking and squinting | Orbicularis Oculi |
| Used to pout | Platysma |
| Raises your eyebrows for a questioning expression | Frontalis |
| Your "kisser" | Orbicularis oris |
| allows you to "bite" the carrot stick | masseter |
| tenses skin of the neck during shaving | platysma |
| a major spine flexor | rectus abdominis |
| prime mover for pulling the arm posteriorly | latissimus dorsi |
| elbow extender | triceps brachii |
| help form the abdominal girdle (four pairs of muscles) | 1. rectus abdominis 2. external oblique 3. internal oblique 4. transverse abdominis |
| extends and adducts wrist | extensor carpi ulnaris |
| allows you to raise your arm laterally | deltoid |
| shoulder adductors (two muscles) | 1. pectorals major 2. latissimus dorsi |
| flexes elbow; supinates the forearm | biceps branchii |
| small muscles between the ribs; elevate the ribs during breathing | external intercostal |
| extends the head | erector spinae |
| extends the spine | erector spinae |
| extends and abducts the wrist | extensor carpi radialis |
| Lateral compartment muscle that plantar flexes and everts the ankle | fibularis longus |
| forms the buttock | gluteus maximus |
| a prime mover of ankle plantar flexion | gastrocenemius |
| a prime mover of ankle dorsiflexion | tibalis anterior |
| allow you to grip a horse's back with your thighs | adductor group |
| muscles that insert into the tibial tuberosity (two choices) | 1. vastus muscles 2. rectus femoris |
| muscle that extends knee and flexes thigh | rectus femoris |
| What are the two types of contractions? | 1. Isotonic 2. Isometric |
| What does the isotropic do? | muscles shorten and movement occurs |
| What does the isometric do? | tension in muscles increases no movement occurs |
| If the nerve supply to a muscle is destroyed, the muscle is no longer tones and what happens? | the muscle becomes soft and flabby |
| What are the three types of muscles? | 1. skeletal 2. cardiac. 3. smooth |
| Where is the skeletal muscle found? | found in limbs |
| Where is the cardiac muscle found? | found in heart |
| Where is the smooth muscle found? | found in viscera |
| Is the skeletal muscle striated or not striated? | striated |
| Is the cardiac muscle striated or not striated? | striated |
| Is the smooth muscle striated or not striated? | not striated |
| Is the skeletal muscle voluntary or involuntary? | voluntary |
| Is the cardiac muscle voluntary or involuntary? | involuntary |
| Is the smooth muscle voluntary or involuntary? | involuntary |
| List the functions of the muscles? | 1. Movement 2. Maintain posture 3. Generate heat 4. Stabilize joints |
| Name one of the development aspect | Muscular dystrophy |
| Does muscular dystrophy group affect males or females? | males |
| What happens to Muscular Dystrophy? | the muscles enlarge due to fat and connective tissue deposit, but the muscle fibers degenerate and atrophy |
| What are 8 types of movements? | 1. flexion 2. Extension 3. Hyperextenion 4. Abduction 5. Adduction 6. Circumduction 7. Rotation 8. Opposition |
| What are the attachment points? | 1. origin 2. insertion |
| When a skeletal muscle contracts, its insertion | moves toward its origin |
Created by:
leah.howard